I have just rebuilt my computer - Win XP Pro, Outlook 2007, and installed and licensed Avast Pro.
However the antispam toolbar is not appearing in Outlook. There is no entry for it in the popup menu to enable/disable toolbars, and it does not even appear in the list of COM add-ins under Tools > Trust Centre > Add-ins. I do however get a splash screen for Avast when starting Outlook.
I have tried removing and re-installing Avast to no avail.
Having looked further, and compared my setup to one on another of our computers, I see that there is no AntiSpam section in the Additional Protection tab of the Avast User Interface.
For a repair of avast. Windows, Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button from the pop-up window, scroll down to Repair, click next and follow.